| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger which can prevent leakage of a refrigerant.SOLUTION: Header tanks 2,3 of a condenser 1 have a cylindrical tank body 7 and closing members closing both end openings of the tank body 7. The tank body 7 is formed by forming a metal blank 10 in a cylindrical shape, partially superposing both side edges on each other and brazing both side edges of the metal blank 10 superposed on each other. A piping member 13 is brazed to the header tank 2. The piping member is provided with a recessed brazing surface 15 with which a part of an outer peripheral surface of the tank body 7 of the header tank 2 comes in surface contact, and a refrigerant passage 13a the one end of which is opened to the brazing surface 15 and where the opening communicates with the inside of the header tank 2. The brazed part of both side edges superposed on each other of the metal blank 10 in the tank body 7 of the header tank 2 is located on a part deviated from the opening of the refrigerant passage 13a on the soldering surface 15 of the piping member 13. |
